12645634 has 8 divisors (see below), whose sum is σ = 19074960. Its totient is φ = 6287316.

The previous prime is 12645623. The next prime is 12645643. The reversal of 12645634 is 43654621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 12645596 and 12645605.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17304 + ... + 18019.

It is an arithmetic number, because the mean of its divisors is an integer number (2384370).

Almost surely, 2^12645634 is an apocalyptic number.

12645634 is a deficient number, since it is larger than the sum of its proper divisors (6429326).

12645634 is a wasteful number, since it uses less digits than its factorization.

12645634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35504.

The product of its digits is 17280, while the sum is 31.

The square root of 12645634 is about 3556.0700218078. The cubic root of 12645634 is about 232.9772614379.

The spelling of 12645634 in words is "twelve million, six hundred forty-five thousand, six hundred thirty-four".